Shock absorber



May 7, 1935. B. 1 MALLoRY SHOCK ABSORBER Filed Aug. 7, 1933 ATTORNEY.

Patented May 7, 1935 2,000,086

UNITED STATES PATENT OFFICE SHOCK ABSORBER Bonnie L. Mallory, Cleveland, Ohio, assignor to Gadoets Inc., Cleveland, Ohio, a corporation of io Application August 7, 1933, Serial No. 683,982

3 Claims. (Cl. 18S-130) This invention relates to a shock absorber of leaking ntO the hOuSing Where it WOilid @Ome the arm type and has for its principal object to into contact with the friction surface of the drum. produce in a shock absorber of this type and Any Suitable IneanS (nOt Shown) may be DIOVided with the simplest and most inexpensive mechafor preventing the eSCaDe f lubricant fl'Om the nism a controllable differential snubber effect. space 25 around the shaft I9. 5

Other and more limited objects will become Received on the bolt I3 is a U-shaped yoke 26 apparent from the following description when and the folded over end of a metallic strip 21 taken in connection with the accompanying drawwhich together with a friction liner 28 makes up ing in which Fig. 1 is a sectional view taken para friction band adapted to contact the drum surm allel to the vehicle frame upon which the device face 2W. This friction band extends around the l0 is to be mounted and corresponding substantially drum 2I and terminates in an abutment 29 conto the line I-I of Fig. 2; Fig. 2 is a section on sisting of a T-shaped member riveted to the metal the line 2-2 of Fig. 1 and Figs. 3 and 4 are detail strip 21 and provided with projections 30 which views of a yoke member forming a portion of the may be struck out of the metal or otherwise pro- 5 spring anchorage. vided. The yoke member 26 is pivotally engaged 15 Referring now to the drawing, the numeral ID on the bolt I3 whereby it may be TDi/ated away indicates the frame member of a vehicle, such from the drum enough to allow the abutment 29 as an automobile, to which my improved shock to be moved into the space between its arms. A absorber is adapted to be attached. The snubplurality 0f Springs 3| are intefDOSed between the loing mechanism proper is enclosed within a housbight DOTtiOn 0f the yOke 26 and the abutment 20 ing made up of a shell H and a cover l2 tcle- 29, its open ends being received on the projecscoping thereover. The housing is connected to tions 30. the frame member I0 by means of bolts I3 and From the foregoing, it Will be Seen that When I4 extending integrally through the housing and the arm rotates in a counter clockwise direction through said frame member. Between the frame as seen in Fig. 1 both the friction between the 25 member I0 and the housing cover I2 is a member friction band and drum 2i and the reSilienCy I5 which may be a washer but preferably is a of the SDringS 3i Wiii tend t0 tighten the fiiC- nut threaded upon the end of the bolt whereby tion band whereby to increase the snubbing efto hold the housing in assembled relation when it fect and that when the arm is rotated in the 3o is not attached. opposite direction, the resiliency of the springs 30 Attached to the housing members II and I2 will tend to tighten the friction band while the respectively are bearing members I6 and I'I each force of friction tends to loosen it. The result consisting of a cylindrical portion within which is that by DIOpeIly Selecting the Strength and is received a bushing I8 and a ange portion number of springs, it is possible to secure within which is connected to the housing member by desirable limitS any ratio 0f up and dOWn 35 spot welding or other suitable means. snubbing effect.

Journaled within the bushings I8 is a shaft It Will thllS be Cieal that by the use 0f Very I9 to which is keyed, as indicated at 29, a drum simple meChaniSrn, I have Produced an arm snubmember 2I. 'Ihe shaft I9 terminates in a polygbei Which iS Wen adapted fOI' itS intended Duronal portion 22 to which an arm is adapted to pose and quite flexible as to snubbing effect and 40 be connecte@ The arm is indicated in 1ct and differential between up and down strokes. While dash lines in Fig. 1. The drum member 2I may I have shown and described the preferred embe a casting provided with a cylindrical drum bodiment of my invention, I wish it understood surface 2Ia and sealing cylindrical anges 2lb that I am not limited to details thereof but only concentric with the drum surface 2i f1. The ends in accordance with the appended claims and the 45 of the flanges 2Ib are preferably provided with pIOl art. grooves 2|c between which and the flanges of Having thus described my invention, what I the members I6 and II are positioned deformable claim is: sealing washers 23. Only one of the anges 2|b 1. In a device of the class described, a housing,

is shown as being provided with sealing grooves a drum journaled therein and having a shaft ex- 50 2|c and washers 23 but it is to be understood tending therefrom for receiving an arm, a bolt that the other said flange will be similarly extending through said housing, a yoke member equipped in the preferred form. With these sealhaving its ends received on said bolt, a friction ing washers in position, grease may be packed band connected to said bolt, wound around said into the spaces 24 and 25 without danger of drum and provided with an abutment received within said yoke, and compression spring means interposed between said abutment and the bight portion of said yoke.

2. In a device of the class described, a housing, a drum journaled therein and having a shaft extending therefrom for receiving an arm, a bolt extending through said housing, a yoke member having its ends pivotally received on said bolt, a friction band connected to said bo1t,wound around said drum and provided with an abutment adapted to be received Within said yoke, and compression spring lmeans interposed between said abutment and the bight portion of said yoke.

3. In a device of the class described, a housing,

a drum journaled therein and having a shaft extending therefrom for receiving an arm, a bolt extending through said housing, a yoke member having its ends pivotally received on said bolt, a friction band connected to said bolt, wound around said drum and provided with an abutment adapted to be received within said yoke, and compression spring means interposed between said abutment and the bight portion of said yoke, said spring means comprising a plurality of coiled compression springs, and said abutment and said bight portion being provided with projections adapted to enter the ends of such springs.

BONNIE L. MALLORY. 

